Julius schulke



' (No Model.)- 2 Sheets-Sheet 1.

J. SOHULKE. REGENERATIVE HYDROOARBON LAMP.

No. 542,899. Patented July 16,1895.

(No Model.) 2 Sheets-Sheet 2 J. SGHULKE.

REGENERATIVB HYDROGARBON LAMP. No. 542,899. Patented July 16, 1895.

neer, a subject of the Emperor of Germany,

UNITED STATES PATENT OFFICE.

JULIUS SCHllLKE, OF BERLIN, GERMANY.

REG EN ERATIVE HYDROCARBON -LAMP.

SPECIFWATION forming part of Letters Patent No. 542,899, dated J uly 16, 1895.

Application filed July 19, 1894- Serial No. 517,958. (No model.)

To all whom, it may concern:

Be 1t known that I, JULIUS SOHi'iLKE, engiand a resident of 15 Engel Ufer, in the city of Berlin, in the Empire of Germany, have invented new and useful Improvements in Regenerative Hydrocarbon Lamps, of which the following is a full, clear, and exactdescription.

This invention, relates to a regenerative hydrocarbon-lamp in which petroleum is gasi-.

fied and then burned without wicks being necessary.

According to my invention the petroleum receptacles are arranged in such manner that the fluid in the outlet-reservoir is maintained at a constant level. Further, I provide an arrangement for effecting a regular dripping of the combustible material into the pipes, 850., leading to the gasifying-retort without the use of valves or cocks, and also devices by means of which the petroleum is only fed to the retort after the lamp-has been sufficiently heated-for instance, by burning spirit-in order to gasify the oil. The lamp is also provided with a device for allowing the air to mix with the gasified petroleum in the gasifyingretort.

I will now describe my invention with reference to the accompanying drawings, in Which Figure 1 is a view of the complete lamp in part vertical section. Figs. 2, 3, and t show, partly in section, elevations of modified devices by means of which the petroleum can only be fed to the gasifying-retort after the necessary quantity of spiritfor preheating the lamp has been burned.

The lamp consists essentially of the gasifying-retort a, communicating with the petroleum feed-pipe b and with thegas-pipes c. The lower ends of the latter pass through the ring 61, whose openings or orifices admit the air heated by the folded mantle e on both sides of the small flames, and thereby cause same to spread out. This air enters through openings f of the casing f, on which latter the chimney g is fixed.

It is of special importance with this class of lamps that the feeding of the combustible The oil is put into the receptacles h h which are made of suitable form and size, and of port or bracket Z the valve being controlled by a spring Z After charging the receptacles through a suitable opening,preferably closed by a screw-stopper, (not shown-in the draw ings,) the neck 11 of the receptacle, with the valve Z, is inserted into a casing m, against the bottom on of which the spindle Z abuts, so that the valve Z is opened against the tension of the spring Z The oil now passes from the receptacle h and the receptacle or receptacles connected with same into the casing m until the orifice k is closed by the level of the fluid in such casing. The oil is thus fed from the receptacle in accordance with the quantity being consumed, so that the fluid is maintained at a constant level.

A reservoir 0, communicating by a pipe with the casing m, is provided at its upper end with an opening, through which one end of a siphon-like pipe 19 passes. This pipe 19 is so hinged by brackets 10' p or in other suitable manner to the chimney g or other stationary part of the lamp, that it can be pulled down or lifted by means of chains g g of the arm q until itreaches the position shown by dotted lines in Fig. 1. pipe p is closed by a plate 12 provided with an orifice or recess 17*, through which the petroleum or oil drawn up from the reservoir 0 by the capillary attraction of the wick or fibrous material 7', with which the pipep is filled, can drip. The oil in the reservoir 0 is kept at a constant level corresponding to that in the casing m.

The petroleum only drips through the orifice 10 near which a few links of chain 19 are attached, from which the oil drips when the free end of the pipe 10 is'lowered by pulling down the lever q until the orifice p is below The free end of the 5o material or oil can be exactly regulated. the level of the fluid in the reservoir 0. When Ioo with each other by tubes 72. 71.3 and are supported by the casings m m connected by a cross-bar it, partly forming a tube, such crossbar at the same time serving for attaching the reservoirs to the chimney by a holder at or another suitable attachment. The casing m is only fixed for making the lamp symmetrical and securely supporting the receptacle h, no oil, however, passing into such casing m from the closed receptacle h, so

that it is not necessary to provide another valve, as in the casing m.

The dripping petroleum falls into a funnel b in immediate connection with the feedpipe I). The spirit or like combustible material for heating the lamp is also fed through the pipe I), such spirit passing from the retort or through the pipe 8 to a cup t, placed within a second cup 15', and through which the burner-tube 'Lt passes, the combustible material being fed to the latter by wicks. The wicks are lighted by opening the glass globe r; and extinguish themselves when the quantity of spirit necessary for heating the lamp sniiiciently is exhausted.

The quantity of spirit found necessary for heating the lamp is either fed directly into the funnel b, and the pipe 19 for feeding the oil only lowered after the lamp has been heated, or special devices may be employed by means of which the oil can be immediately fed. Modifications of such arrangement are shown in Figs. 2, 3, and 4.

In Fig. 2 a receptacle b is connected with the petroleum feed-pipe b by a pipe 11 The receptacle b is confined by stopper b with air-pipe b to the space required for receiving the necessary quantity of spirit which is poured into the cup b and reaches the re ceptacle 12 through the pipe 12 After the necessary quantity of spirit has been poured into the cup I), the pipe p can be lowered for the immediate feeding of the oil. The petroleum dripping from 19 into the cup 1)? being lighter than such spirit, forces the spirit out of the receptacle 11 through the pipe I) to the pipe I), and from thence through chamber av and pipe 8 to the cup 15. When all the spirit is forced out the petroleum to be gasified enters the lamp or the pipe I) in the same manner. After the lamp is extinguished the chamber 1) is still full of petroleum, which, when filling the chamber with spirit for the next heating, would pass into the lamp if the chamber had not been previously removed and emptied. To avoid this the device shown in Fig.

3 is recommended. It consists of a removable reservoir b holding the necessary quantity of spirit for heating the lamp and placed in the cup I), such reservoir being provided with dripping-dish b air -pipe I), overflowpipe 1) and handle I)". As before described, the spirit is forced from the reservoir by the lighter oil dripping from the pipe 19 up the pipe 12 into the cup I), and from thence into the pipe I). The oil then takes the same course. The oil remaining in the cup b after the lamp has been extinguished is poured out 61: the reservoir Z2 through the pipe I)" before recharging with spirit for the next heating.

The arrangement shown in Fig. 4 dispenses with an intermediate receptacle for the spirit.

A pipe 19 is fixed inthe end of a closed pipe p, and is of such a length that the oil which collects in the end of the closed pipe 13 when in the lowered position only passes through the pipe 19 when the spirit for heating the lamp, which is put directly into the funnel b, is exhaustedthat is, when the lamp is sufficiently heated. When the pipep is returned to its raised position, the petroleum collected in the end of same flows back into the reset,

VOlI'.

In order that the air can mix with the gasified petroleum before being burned, a pipe 10, passing through the casingf of thelamp and communicating with pipe I), is provided with a perforated screw-cap w on its screwed end, so that the air drawn into the lamp can be regulated.

An incandescent body y may be secured to the ring dby means of a Wire 2 or other suitable device.

Having now described my invention, I declare that what I claim, and wish to secure by Letters Patent, is-

1. In a lam p, an oil supply, a reservoir connected thereto, a pivoted pipe connected to the top of the reservoir, a wick placed in the pipe and extending down into the reservoir, and means connected to the pipe for tilting it, combined with a pipe, into which the oil drips, and a burner where the oil is vaporized and burned, substantially as shown.

2. In a lamp, an oil supply, provided with a valve in its lower end, a chamber into which the lower end of the oil supply projects; a reservoir connected to said chamber, a pipe, provided with a wick, and pivoted in the top of the reservoir, a rod connected to the pipe, and cords, chains, or wires connected to the ends of the rod for operating it; combined with a pipe into which the oil drips, and burner at the lower end of the pipe, substantially as described.

3. A main reservoir, a pipe leading therefrom, a second reservoir connected to the main one, by the pipe, and a curved pipe pivoted above the reservoir 0, and havingawick placed therein, combined with a tilting rod for adjusting the curved pipe, and a pipe, connecting with the retort, and into which the oil is fed, substantially as shown.

4. The second reservoir 0, the tilting curved pipe pivoted above the reservoir, and the wick placed in the pipe, combined with a receptacle for holding spirits, and the pipe b, the receptacle being connected with the pipe, substan- [0' tially as specified.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

- JULIUS SCHULKE.

Witnesses: v

J OHN MA'rTEs, J r., W. HAUPT. 

